Flooring Material & Tile Alignment
Master the math of tile coverage, mortar bedding volumes, and the necessary 'Skirting' requirements for professional flooring.
The Geometry of Tiling
Calculating tiles is simple in theory (Area / Tile Area), but complex in reality. Professional tiling requires accounting for Grout Joints (the gap between tiles) and Skirting (the vertical border of tiles along the base of the wall). For accurate procurement, you must always round up to the nearest box of tiles, as manufacturers do not sell individual units.
Understanding Bedding Mortar
Tiles are rarely laid directly on a concrete slab. A $1.5"$ to $2"$ thick layer of sand-cement mortar is used to level the floor and provide a bond. This bedding is usually a "dry mix" (semi-dry) that is spread and compacted before the tiles are "knocked" into place with a rubber mallet.
Standard Tile Sizes
- Standard Ceramic: $12" \times 12"$ ($1 \times 1$ ft)
- Large Vitrified: $24" \times 24"$ ($2 \times 2$ ft)
- Plank Tiles: $8" \times 40"$ or $12" \times 48"$
Why Skirting is Important
Skirting serves as a protection for the base of the wall against moisture during floor mopping and hides the uneven joint between the floor and the wall. Standard skirting height is 4 inches ($100$mm). As a rule of thumb, skirting adds about $10\%$ to $15\%$ to your total tile requirement.
Frequently Asked Questions (FAQ)
What is 'Spacers' and 'Grout'?
Spacers are small plastic cross-pieces used to maintain a perfectly uniform gap ($2$mm to $4$mm) between tiles. Once the mortar sets, the spacers are removed and the gaps are filled with Grout—a pigmented polymer-modified cement that prevents water from seeping under the tiles.